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Treadstone® FR30 Gypsum Underlayment
Treadstone FR30 is an advanced gypsum concrete underlayment offering fire-resistant properties and compressive strength up to 3800psi for use as a lightweight flooring base. It provides fast setting times, enhanced sound attenuation, and is approved for use over multiple substrate types in residential and commercial applications.
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Summary
Treadstone FR30 is an advanced gypsum concrete underlayment offering fire-resistant properties and compressive strength up to 3800psi for use as a lightweight flooring base. It provides fast setting times, enhanced sound attenuation, and is approved for use over multiple substrate types in residential and commercial applications.
Tags
gypsum-underlayment · fire-rated · floor-base · compressive-strength · lightweight-concrete
Key entities
Treadstone FR30 (technology, 0.99) · Treadstone FR25 (technology, 0.95) · Treadstone Sound Attenuating Mats (technology, 0.9) · UL (organization, 0.92) · gypsum concrete (concept, 0.98) · fire-resistive underlayment (concept, 0.96)
Classification
reference · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 21 Jun 2026